<template>
  <!-- 头部区域 -->
  <el-container class="home-container">
    <el-header>
      <div>
        <img src="../assets/blackhourse.png" alt="" /><span
          >电商后台管理系统</span
        >
      </div>
      <el-button type="info" @click="logout()">退出</el-button>
    </el-header>
    <!-- 页面主体区域 -->
    <el-container>
      <!-- 侧边栏 -->
      <el-aside :width="isCollapse ? '50px':'200px'">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <el-menu
          background-color="#333744"
          text-color="#fff"
          active-text-color="#ffd04b"
          unique-opened
          :collapse='isCollapse'
          :collapse-transition="false"
          :router="true"
          :default-active="activePath"
        >
          <!-- 一级菜单 -->
          <el-submenu :index="item.id+''" v-for="item in menuList" :key="item.id">
            <template slot="title">
              <i :class="menuImage[item.id]"></i>
              <span class="firstLevelMenu">{{item.authName}}</span>
            </template>
            <!-- 二级菜单 -->
            <el-menu-item
             :index="'/'+item1.path" v-for="item1 in item.children" :key="item1.id" @click="saveNavStatus('/'+item1.path)">
              <template slot="title">
              <i class="el-icon-menu"></i>
              <span>{{item1.authName}}</span>
              </template>
            </el-menu-item>
          </el-submenu>
        </el-menu>
      </el-aside>
      <!-- 右侧内容主体 -->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
  data(){
    return{
      menuList:[],
      menuImage:{
        125: "iconfont icon-users",
        103: "iconfont icon-tijikongjian",
        101: "iconfont icon-shangpin",
        102: "iconfont icon-danju",
        145: "iconfont icon-baobiao",
      },
      //是否折叠
      isCollapse:false,
      //被激活的链接地址
      activePath:'',
      
    }
    //左侧菜单数据 
  },
  created() {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },

    //获取所有的菜单
    async getMenuList() {
      const { data: res } = await this.$http.get('menus')
      if(res.meta.status!=200) return this.$message.error(res.meta.msg)
      this.menuList=res.data
      console.log(res)
    },
    toggleCollapse(){
      this.isCollapse=!this.isCollapse
    },
    //保存链接的激活状态
    saveNavStatus(activePath){
      window.sessionStorage.setItem('activePath',activePath)
      this.activePath = activePath
    }
  },
}
</script>

<style lang="less"  scoped>
.home-container {
  height: 100%;
}

.el-header {
  background-color: #373b41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-weight: bold;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    > span {
      padding-left: 20px;
    }
  }
}
.el-aside {
  .el-menu{
    border-right: none;
  }
  .firstLevelMenu{
  margin-left: 10px;
}
  background-color: #333744;
  .home_menu {
    background-color: rgb(38, 46, 60);
    color: #fff;
  }
}
.el-main {
  background-color: #eaedf1;
}
.toggle-button{
  background-color: #4a5064;
  font-size: 15px;
  line-height: 25px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
}
</style>